INDEX. 



Acad6mie des Sciences, Agriculture, 

 Arts et Belles- Lettres, of Aix, 

 Letter from, 533. 



Acheson, E. G., receives Rumford 

 Medal, 534. 



Activities of Animals, The Influence 

 of Light on the Daily, 533. 



Air, The Absorption of the, for Light 

 of very Short Wave-Lengths, 528. 



Air, Damping of the Quick Oscilla- 

 tions of a Twisted Fibre by the 

 Resistance of the, and by the 

 Torsional Forces, 533. 



Aldrovandi, Anniversary of Death 

 of, 527. 



Aleutian Islands, Volcanoes of, 532. 



Amphioxus, The Sensory Reactions 

 of, 413, 533. 



Animals, The Influence of Light on 

 the Daily Activities of, 533. 



Arc and Spark, Difference in Wave- 

 Lengths of Titanium XX 3900 and 

 3913 in, 351, 528. 



Arc Spectra, Some Effects of Heavy 

 Pressure on, 530. 



Arsenic in Urine, The Determina- 

 tion of, 325. 



Arsenic, The Quantitative Determina- 

 tion of, by the Gutzeit Method, 

 295. 



Assessment, Annual, Amount of, 542. 



Atomic Weight of Lead, A Revision 

 of, 363, 529. 



Avery, A. H. See Kent, N. A., and 

 Avery, A. H. 



Azores, Volcanoes of the, 529. 



Baker, Sir Benjamin, Death of, 529. 

 Bartlett, H. H. See Robinson, B. L., 

 and Bartlett, H. H. 



Baxter, G. P., and Wilson, J. H., A 

 Revision of the Atomic Weight 

 of Lead. Preliminary Paper. — 

 The Analysis of Lead Chloride, 

 363-373, 529. 



Bell, Louis, Note on Some Meteoro- 

 logical Uses of the Polariscope, 

 405-412, 531; The Physiological 

 Basis of Illumination, 75-96. 



Black, O. F. See Sanger, C. R., and 

 Black, O. F. 



Blasius, R., Death of, 528. 



Bohuslav, J., Death of, 527. 



Bowditch, C. P., Report of Treasurer, 

 535. 



Briggs, L. B. R., elected Resident 

 Fellow, 530; accepts Fellowship, 

 532. 



Cabot, Samuel, Biographical Notice 

 of, 547. 



California Academy of Sciences, 

 Letter from, 527. 



Campbell, L. L., The Variation of 

 the Thermomagnetic Effect in 

 Soft Iron with Strength of the 

 Magnetic Field and Temperature 

 Gradient, 532, 544. 



Cathode Rays, Longitudinal Magnetic 

 Field and the, 397, 530. 



Chemical Laboratory of Harvard 

 College, Contributions from, 295, 

 395, 363, 473, 519. 



Chemistry, Thermodynamic, Outlines 

 of a New System of, 257. 



Chloride, Manganous, Transition Tem- 

 perature of, 341. 



Coil, An Induction, The Influence of 

 Hysteresis upon the Manner of 

 Establishment of a Steady Cur- 



